FKIE_CVE-2026-97924

Vulnerability from fkie_nvd - Published: 2026-09-25 11:17 - Updated: 2026-09-25 11:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing/user_events: Don't destroy fields when event removal fails destroy_user_event() destroys the event's fields before attempting to remove the trace event call. If user_event_set_call_visible() fails, e.g. because the event is still enabled and trace_remove_event_call() returns -EBUSY, the event is left registered with an irreversibly destroyed field list. Any subsequent interaction with the event then operates on an empty field list while it is still fully visible in tracefs. Move the field destruction after the call removal, and splice the field list back onto the event when the removal fails so the event remains in a consistent state.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0892da2272ec565858aa1ec5458552d699de9142
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2deb753127d7b7035e893955c5e91875e767d1f8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/62d6544e86506bb0695c9594c713cba859666f2f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_events_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8b",
              "status": "affected",
              "version": "7f5a08c79df35e68f1a43033450c5050f12bc155",
              "versionType": "git"
            },
            {
              "lessThan": "0892da2272ec565858aa1ec5458552d699de9142",
              "status": "affected",
              "version": "7f5a08c79df35e68f1a43033450c5050f12bc155",
              "versionType": "git"
            },
            {
              "lessThan": "62d6544e86506bb0695c9594c713cba859666f2f",
              "status": "affected",
              "version": "7f5a08c79df35e68f1a43033450c5050f12bc155",
              "versionType": "git"
            },
            {
              "lessThan": "2deb753127d7b7035e893955c5e91875e767d1f8",
              "status": "affected",
              "version": "7f5a08c79df35e68f1a43033450c5050f12bc155",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/trace_events_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/user_events: Don\u0027t destroy fields when event removal fails\n\ndestroy_user_event() destroys the event\u0027s fields before attempting to\nremove the trace event call. If user_event_set_call_visible() fails,\ne.g. because the event is still enabled and trace_remove_event_call()\nreturns -EBUSY, the event is left registered with an irreversibly\ndestroyed field list. Any subsequent interaction with the event then\noperates on an empty field list while it is still fully visible in\ntracefs.\n\nMove the field destruction after the call removal, and splice the\nfield list back onto the event when the removal fails so the event\nremains in a consistent state."
    }
  ],
  "id": "CVE-2026-97924",
  "lastModified": "2026-09-25T11:17:19.533",
  "metrics": {},
  "published": "2026-09-25T11:17:19.533",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0892da2272ec565858aa1ec5458552d699de9142"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2deb753127d7b7035e893955c5e91875e767d1f8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/62d6544e86506bb0695c9594c713cba859666f2f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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